Updated June 2026 | All statutory references in this article reflect the Florida Statutes, Title XL, Chapter 713 (2024 codification)

For material suppliers on Florida private construction projects, the Notice to Owner (NTO) is the foundational step in preserving lien rights. Under §713.06(2)(a), Fla. Stat., any lienor who does not have a direct contract with the property owner must serve an NTO within 45 days of first furnishing labor, services, or materials. Without it, your right to file a mechanics lien is permanently lost—regardless of how much you are owed.

While the statutory obligation to account for received NTOs falls on the general contractor during payment certification, the risk of failing to serve falls entirely on the supplier. This guide explains the NTO requirements that apply to material suppliers, equipment rental companies, and suppliers with direct contracts with the owner.

What Is a Florida Notice to Owner?

The Florida Notice to Owner is a preliminary notice required by §713.06(2)(a), Fla. Stat.. It informs a property owner that a party is furnishing labor, services, or materials for an improvement to their property—and that a mechanics lien may be filed if payment is not received.

The NTO is not a lien. It does not create a claim against the property. What it does is preserve your ability to file one later.

Once the owner receives an NTO, they are on notice that funds paid to the general contractor may not reach the downstream party who served it. Owners who disburse payment without accounting for outstanding NTOs can face double payment liability—a significant practical leverage for any supplier who has properly served the notice.

Who Must Serve a Florida Notice to Owner?

Material suppliers who do not have a direct contract with the property owner must serve an NTO (§713.06(2)(a), Fla. Stat.). This includes suppliers who contract with:

• The general contractor
• A subcontractor
• A sub-subcontractor

Equipment rental companies are treated as material suppliers under Florida law when they furnish equipment for use on the site of an improvement (§713.01(22), Fla. Stat.). If you rent equipment without a direct contract with the owner, you must also serve an NTO within 45 days of your first delivery to the project.

Suppliers with a direct contract with the property owner are exempt from serving an NTO (§713.05, Fla. Stat.). The law assumes the owner is already aware of parties they directly hired. Lien rights still exist and the other statutory deadlines (described below) still apply.

The Supplier-to-supplier Limitation

Florida law restricts lien rights to those who supply materials directly to an owner, contractor, subcontractor, or sub-subcontractor (§713.01(22), Fla. Stat.). A supplier who furnishes materials to another material supplier—rather than to one of those listed parties—has no lien rights under Florida law.

This is a hard stop. If your immediate customer on the project is a material supplier with no subcontracting role, you cannot file a mechanics lien for nonpayment, and there is no NTO to serve.

Before extending credit on a Florida project, confirm who your customer is in the contracting chain. If that party is itself a material supplier, seek contract protections such as personal guarantees, upfront payment, or secured credit terms rather than relying on lien rights.

The Critical 45-day Deadline

The NTO must be served within 45 days of the date you first furnish labor, services, or materials to the project (§713.06(2)(a), Fla. Stat.).

“First furnishing” is the date of your first physical delivery to the project—not the contract execution date, not the invoice date, and not the date payment became due.

• If you make your first delivery on March 1, your NTO must be served no later than April 15.
• If you miss the 45-day window, you cannot serve a valid NTO for that project at all. You lose lien rights for every dollar owed, not just early deliveries.

The deadline is absolute and cannot be extended, waived, or excused by any equitable argument. Florida courts apply it strictly.

What Must the Florida Notice to Owner Include?

The NTO must be substantially in the form prescribed by §713.06(2)(c), Fla. Stat. and must contain:

1. Your name and address (the lienor or material supplier)
2. The name and address of the property owner (use the NOC if recorded)
3. A general description of the materials furnished or to be furnished
4. A sufficient description of the real property to identify it (street address is generally enough)
5. The name of the party who ordered the materials (your contractor, subcontractor, or sub-subcontractor customer)
6. The following statutory warning language, substantially as written:

“THIS IS NOT A LIEN. THIS IS ONLY A NOTICE THAT THE UNDERSIGNED HAS FURNISHED OR EXPECTS TO FURNISH SERVICES OR MATERIALS FOR THE IMPROVEMENT OF YOUR PROPERTY.”

Omitting the statutory warning can invalidate the notice. The NTO does not require a dollar amount and does not need to be notarized.

How to Obtain the Owner’s Name and Address

The most reliable source for the owner’s name and address is the recorded Notice of Commencement, which must be recorded in the county public records before work begins on most private projects exceeding $2,500 (§713.13, Fla. Stat.). A certified copy is required to be posted at the job site.

If the NOC is not posted, search the county clerk of courts or property appraiser records, or request a copy directly from the general contractor. If no NOC has been recorded, serving the NTO to the owner at the property address is generally sufficient.

How to Serve a Florida Notice to Owner

1. Identify Who to Serve

Serve the NTO on the property owner—the person or entity identified as the owner on the Notice of Commencement. Service on the general contractor or your customer does not satisfy the NTO requirement. The notice must reach the owner.

You may additionally serve a copy on the general contractor as a practical matter, but this does not substitute for owner service.

2. Use a Valid Service Method

Florida law requires service by one of the methods listed in §713.18, Fla. Stat.:

• Personal delivery to the owner
• Certified mail with return receipt requested
• Common carrier with delivery confirmation and signature

Service by certified mail is considered complete on the date of mailing, not the date of receipt. Mail early to eliminate any risk of deadline disputes.

3. Retain Proof of Service

Keep copies of the completed NTO, certified mail receipts, and return cards. If a lien dispute arises, you will need to demonstrate that service was timely and properly made.

After You Serve: What Happens Next

Serving a timely NTO preserves your right to file a mechanics lien if you are not paid. It is a prerequisite—not a guarantee. To actually perfect a lien claim, you must also:

1. Record a Claim of Lien within 90 days of your final furnishing (§713.08(5), Fla. Stat.)
2. Serve a copy of the recorded Claim of Lien on the owner within 15 days of recording (§713.08(4)(c), Fla. Stat.)
3. File a lawsuit to enforce the lien within 1 year of recording, or within 60 days if a Notice of Contest of Lien is served on you (§713.22, Fla. Stat.)

“Final furnishing” is the last date you actually deliver materials to the project. Warranty work, punch-list corrections, and returns do not extend this date.

Special Considerations for Equipment Rental Companies

Equipment rental companies that furnish equipment on the site of an improvement are treated as material suppliers and have lien rights under §713.01(22), Fla. Stat.. Key distinctions:

• Bare rental (no operator): Treated as a material supply. The 45-day NTO deadline runs from the date you first deliver equipment to the project site.
• Equipment with operator: The equipment portion remains a material supply claim. The operator’s labor may be separately recoverable as a laborer’s lien, which has different rules.
• Off-site equipment: If rented equipment never comes to the job site itself—for example, equipment used at a fabrication facility to process materials later delivered to the project—lien rights may not attach. Florida’s statute requires the improvement to occur on the site.

The supplier-to-supplier limitation applies here as well: if you rent equipment to a material supplier (rather than to an owner, contractor, subcontractor, or sub-subcontractor), you have no lien rights.

Directly Hired Suppliers: No NTO Required, But Deadlines Still Apply

Suppliers with a direct contract with the property owner are exempt from serving an NTO (§713.05, Fla. Stat.), and lien rights arise automatically from that direct relationship. However, the same downstream deadlines apply:

• Record a Claim of Lien within 90 days of final furnishing (§713.08(5), Fla. Stat.)
• Serve a copy on the owner within 15 days of recording
• Bring a lawsuit to enforce within 1 year of recording

Even without an NTO obligation, carefully tracking delivery dates is essential—your 90-day lien window is calculated from the last date of actual furnishing, not from invoice or payment dispute dates.

What Happens If You Miss the 45-day Deadline?

There is no late-filing option, no cure period, and no equitable exception. If you fail to serve the NTO within 45 days of first furnishing, you forfeit lien rights for the entire project.

Remaining remedies are weaker:

• A breach of contract claim through the courts (lien rights are separate from contract rights, but litigation without a lien carries less leverage)
• Direct negotiation with your customer for payment or a payment arrangement
• UCC Article 2 reclamation rights in limited circumstances involving recently delivered goods

None of these alternatives carry the same payment leverage as a mechanics lien. The NTO takes only a few minutes to prepare and send. Send it on the day of your first delivery.

Best Practices for Florida Material Suppliers

1. Serve the NTO on or immediately after your first delivery – Don’t wait until day 44. Send it the same day or the next business day to eliminate any ambiguity about timing.

2. Pull the Notice of Commencement before you ship – Confirm the owner’s legal name and address from the recorded NOC. Serving the wrong party or a misspelled name can invalidate the notice.

3. Confirm the contracting chain before you extend credit – If your customer is itself a material supplier with no subcontracting role, you have no lien rights. Adjust your credit terms accordingly.

4. Track first furnishing by physical delivery date, not invoice date – The 45-day clock runs from the day materials arrive at the project, not from when you bill.

5. Retain proof of service for the full lien enforcement period – Keep certified mail receipts and return cards for at least 1 year after your final furnishing date.

6. Do not count warranty or correction work as furnishing – Deliveries made solely to correct defective materials or satisfy a warranty obligation generally do not extend your final furnishing date for lien purposes.